Interdental brush holder



FIG. 1 is a front elevation view of an interdental brush holder of my new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof; and,

FIG. 7 is a perspective view thereof.

Broken lines are included for the purpose of illustrating unclaimed portions and form no part of the claimed design. 

CLAIM The ornamental design for an interdental brush holder, as shown and described. 